In number 1 I find a problem. You don't really say in Spanish "Licenciado en Ciencias", you specify, I mean, "Matemáticas", "Física", "Química", etc. Well, these are the most common ones. So, you would say "Licenciado en Matemáticas", for example.

Sorry, I forgot about the "erudito" question.
I think it is very strong. Personally, I've never seen that adjective in a CV... I don't know. I think it might be a little bit agressive, unless this is the intention, of course. Well, let's see what other natives' opinions are.